Institute For Scientific Co-operation. (1980). Economics. Laupp & Gobel, Tubingen.
芝加哥风格引文Institute For Scientific Co-operation. Economics. Federal Republic of Germany: Laupp & Gobel, Tubingen, 1980.
MLA引文Institute For Scientific Co-operation. Economics. Laupp & Gobel, Tubingen, 1980.
警告：这些引文格式不一定是100％准确.